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authorNiels Provos <provos@cvs.openbsd.org>2000-06-14 19:18:20 +0000
committerNiels Provos <provos@cvs.openbsd.org>2000-06-14 19:18:20 +0000
commit3984a55223ee6a547528d5b4660f8cd5f0d6e3ea (patch)
treefa4c82eb23eb0d0538bccd09a6f1bc6cbfdb375e /lib/libc/gen
parent8a9535d57b635d694a6432cd6b3fef572afc2173 (diff)
document swap encrypt ctl level
Diffstat (limited to 'lib/libc/gen')
-rw-r--r--lib/libc/gen/sysctl.324
1 files changed, 22 insertions, 2 deletions
diff --git a/lib/libc/gen/sysctl.3 b/lib/libc/gen/sysctl.3
index 56ba6a3fc3a..9e0d3b1c648 100644
--- a/lib/libc/gen/sysctl.3
+++ b/lib/libc/gen/sysctl.3
@@ -1,4 +1,4 @@
-.\" $OpenBSD: sysctl.3,v 1.44 2000/05/25 06:19:03 itojun Exp $
+.\" $OpenBSD: sysctl.3,v 1.45 2000/06/14 19:18:19 provos Exp $
.\"
.\" Copyright (c) 1993
.\" The Regents of the University of California. All rights reserved.
@@ -1048,7 +1048,7 @@ privileges may change the value.
.It Sy Second level name Type Changeable
.It Dv VM_LOADAVG No " struct loadavg no"
.It Dv VM_METER No " struct vmtotal no"
-.It Dv VM_SWAPENCRYPT No " integer yes"
+.It Dv VM_SWAPENCRYPT No " swap encrypt values yes"
.El
.Pp
.Bl -tag -width "123456"
@@ -1061,9 +1061,29 @@ Return the system wide virtual memory statistics.
The returned data consists of a
.Li struct vmtotal .
.It Dv VM_SWAPENCRYPT
+Contains statistics about swap encryption. The string and integer
+information available for the third level is detailed below.
+.Bl -column "Third level nameXXXXXX" "struct loadavgXXX" -offset indent
+.It Sy Third level name Type Changeable
+.It Dv SWPENC_ENABLE No " integer yes"
+.It Dv SWPENC_CREATED No " integer no"
+.It Dv SWPENC_DELETED No " integer no"
+.El
+.Pp
+.Bl -tag -width "123456"
+.It Dv SWPENC_ENABLE
Set to 1 to enable swap encryption for all processes.
A 0 disables swap encryption.
Pages still on swap receive a grandfather clause.
+.It Dv SWPENC_CREATED
+The number of encryption keys that have been randomly created. The
+swap partition is divided into sections of normally 512KB. Each section
+has its own encryption key.
+.It Dv SWPENC_DELETED
+The number of encryption keys that have been deleted, thus effectivly
+erasing the data that has been encrypted with them. Encryption
+keys are deleted when their reference counter reaches zero.
+.El
.El
.Sh RETURN VALUES
If the call to